ICD-10-CM 2027
ICD-10 code for agitans paralysis
From the official ICD-10-CM alphabetic index entry “Paralysis, paralytic (complete) (incomplete) › agitans”. Page updated September 29, 2026.
About coding agitans paralysis
The ICD-10-CM code for agitans paralysis is G20.C (Parkinsonism, unspecified). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on G20.C.
Within G20, choose G20.C (Parkinsonism, unspecified) only when documentation doesn't support a more specific option: without dyskinesia (G20.A) and with dyskinesia (G20.B).
Don't report G20.C together with the conditions in its Excludes1 note: Parkinson's disease NOS (G20.A1), Parkinson's disease with dyskinesia (G20.B-), Parkinson's disease without dyskinesia (G20.A-) and secondary parkinsonism (G21.-).
Use an additional code, if applicable, to identify: dementia with anxiety (F02.84, F02.A4, F02.B4, F02.C4), dementia with behavioral disturbance (F02.81-, F02.A1-, F02.B1-, F02.C1-), dementia with mood disturbance (F02.83, F02.A3, F02.B3, F02.C3), dementia with psychotic disturbance (F02.82, F02.A2, F02.B2, F02.C2), dementia without behavioral disturbance (F02.80, F02.A0, F02.B0, F02.C0) and 1 more.
More specific agitans paralysis codes (official index)
- arteriosclerotic G21.4 — Vascular parkinsonism
Don't confuse with (Excludes1 for G20.C)
Common questions about agitans paralysis ICD-10 codes
What is the ICD-10 code for agitans paralysis?
- G20.C — Parkinsonism, unspecified. More specific codes apply when the documentation supports them: G21.4.
What is the ICD-10 code for arteriosclerotic agitans paralysis?
- G21.4 — Vascular parkinsonism.
Is G20.C billable?
- Yes. G20.C is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G20.C be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G20.C as a principal diagnosis.
Is G20.C a CC or MCC?
- No. G20.C is neither a CC nor an MCC under MS-DRG v44.0.